grep -lir “search text” *

The -l switch outputs only the names of files in which the text occurs, the -i switch ignores the case, and the -r descends into sub directories.

The post Find a text inside multiple files in linux first appeared on Student Projects.

For example if you want to kill firfox

#ps aux | grep firefox

This will generate:

username   5365  0.0  0.0  3572  628 pts/0    S    11:00   0:00 grep firefox

Now kill process using PID

#kill 5365

#kill -9 5365

where -9 is special Kill signal, which will kill the process.

The post How to kill any process in Linux? first appeared on Student Projects.

^v (Control v)

Then you can use arrow keys to select the text you want.

After selecting the text use

Delete to delete the text.
y to copy the text
p to paste the text

The post How to select text vertically in vi/vim editor first appeared on Student Projects.